Ayesha relates that "(once) I asked the Apostle of God (SAW) if I came to know which was Shabi-I-Qadr, what prayer should I make in it. The Prophet replied: Allahumma innaka afuwan karimun tuhibbul afuwa fa-afanni. (O God ! Thou art, indeed, the Most Forgiving, the Most Merciful, and to forgive is most pleasing to Thee; so, forgive me my sins)."
Musnad-e-Ahmad, Tirimidhi and Ibn-e-Majah
Commentary: Persuaded by this Tradition, a number of bondsmen have made it a regular habit to recite this prayer every night, specially in the nights of Ramadhan and more so still during the odd nights of the last ten days of it.
FROM MEANING AND MESSAGES OF THE TRADITIONS
BY SHAYKH MOHAMMAD MANZOOR NOMANI (RA).